Automatic stamping forming technology for K-shaped accessory plates and chain plates of chain and for combination of K-shaped accessory plates and chain plates of chain

Abstract

The invention discloses a chain, K-shaped accessory plates of the chain and chain plates of the chain, and particularly discloses an automatic stamping forming technology for the combination of the K-shaped accessory plates and the chain plates of the chain. A continuous multi-station stamping die is used for conducting progressive stamping forming machining of the K-shaped accessory plates and the chain plates on a steel belt, the two chain plates are inserted into the gap between the two K-shaped accessory plates, and accordingly the combined stock layout of the K-shaped accessory plates and the chain plates is formed. The continuous multi-station stamping die is sequentially provided with a pre-stamping chain plate hole station, a fine stamping chain plate hole station and a chain plate blanking station in the progressive conveying direction of the steel belt. The continuous multi-station stamping die is sequentially provided with a pre-stamping accessory plate pin hole station, a fine stamping accessory plate pin hole station, a stamping accessory plate platform hole station, an accessory plate edge cutting station, a 45-degree accessory plate bending station, a 90-degree accessory plate bending station and a blanking accessory plate station in the progressive conveying direction of the steel belt. According to the scheme, stamping forming machining of the two K-shaped accessory plates and blanking machining of the two chain plates of the chain can be automatically completed in multiple steps on one punch press, and therefore the production efficiency of products is improved.

Description

technical field [0001] The invention belongs to the technical field of chain manufacturing, and in particular relates to a combined automatic stamping and forming process of chain K-type attachment plates and chain plates, in particular to roller chains for short-pitch transportation and K-type attachment plates and inner chain plates. Background technique [0002] Such as Figure 1a , 1b The K-type attached plate shown in 1c is the most common accessory of the roller chain for conveying, and it includes the chain plate part 1 and the attached plate platform part 2, the chain plate plane where the chain plate part 1 is located and the attached plate platform part 2 The attached plate plane is vertical, the chain plate part 1 and the attached plate platform part 2 are connected by a bending part, and the bending part has a circular arc, and the attached plate part 1 is provided with an attached plate pin hole 11 to connect with the chain plate of the chain, and the attached p...

AI Technical Summary

Problems solved by technology

[0003] At present, the punching and forming process of K-type chain plate in the domestic chain industry is: compound punching (blanking, punching) (after punching, such as image 3 The semi-finished product shown) → annealing → bending (after bending is as follows Figure 1a , 1b , K-type attached plate shown in 1c) → reaming (some specifications), compound punching and bending use different molds and punching machines, and bending is formed by stamping 90° once, the inner material of the bending part is compressed, and the outer material is stretched , the deformation of the material is large, the stress is large, the bending part is prone to cracks, and it is difficult to control the bending springback; in order to prevent cracks in the bending part, annealing must be carried out before bending, and the trolley furnace is often used for annealing, which consumes a lot of power And the processing cycle is long, and the surface of the parts is easy to oxidize and decarburize; the bending process is mostly manual feeding and unloading, which has low efficiency and poor operation safety; Waste products are generated; individual products will cause deformation of the punched holes when they are bent, and a reaming process is added to ensure the size of the holes; the entire processing process has many procedures, takes up a lot of equipment, requires a lot of labor, and consumes a lot of energy. Low production efficiency

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